Shaper



April 14, 1925. 1,533,549

R. T. HAZELTON SHAPER Filed Feb. 21, 1924 3 Sheets-Sheet l 51mm View mzlrvzzx w Gummy April 14, 1925.

R. T. HAZELTO N SHAPER Filed Feb. 21, 1924 a Sheets-Sheet 2 April 14, 1925.

R. T. HAZELTON SHAPER Filed'Feb. 21, 1924 3 Sheets-Sheet 5 Qtfouww Patented Apr. 14, 1925.

' UNITED STATES PATENT OFFICE.

ROIBIEIWL '1. HAZELION, OF CINCINNATI, OHIO, ASSIGNOR TO THE CINCINNATI SHAPER COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

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Application filed February 21, 1924. Serial No. 694,381.

To all whom it may concern:

Be it known that I, ROBERT T. HAZELTON, a citizen of the United States, and residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Shapers, of which the following specification is a full disclosure.

This invention relates to improvements in machine tools and is articularly adaptable to machines of the s aper type employing a hollow frame with the transmission gearing housed and journaled within the frame and in the present invention with the primary transmission gearing at the rear end of the frame, and the work supporting table 11 on the front end of the main frame. An 0 ject of the invention is to localize all the controlling levers of a speed change gearing'and extend the hand holds of the controlling levers in a corresponding direction to present the same in a most conven-' ient and accessible position for the operator.

Another object of the invention is to mount and support the controlling levers for the change speed gearing so as to be carried by closure caps, sealing openings leading into respective compartments of the frame of the machine.

Other features and advantages of the invention are more fully disclosed in the following description of the accompanying drawings, forming a part of this specification, in which:

Figure 1' is a general plan view of a shaper with the upper portion of the main frame in horizontal section with the gearing within the casing omitted.

Figure 2 is a horizontal section through 40 the rear end of the casing.

Figure 3 is an. enlarged end view of Fig.

Installing the primary transmission gear- 1ng w1th1n the rear end of the machine operator, however, bein generally stationed at the front end 0 the main frame, it is deslrable to have the transmission controlling mechanism accessible from such position. The transmission controlling hand levers therefore in the present invention are all arranged to extend correspondingly horizontal toward the work table or front end of the machine.

The main frame 1 of the machine is of hollow structure and interiorly provided with partition walls as connecting walls 2, 3, integral with the walls of the main frame tosubdivide the interior of the structure" into' several compartments and subcompartments, and particularly providing compartments at one end of the frame structure for housing the s ed change gearing, adapted for running t e gearing in a bath of lubricant. This adapts the shafts for the gearing and controlling rods to be ournaled in the frame side walls crosswise of the frame with a counter-shaft as an intermediate, connecting the speed change gearing in one compartment with the gearing to be driventhereby in a second compjartment, extending through a partition wall dividing the compartments. The rear or end wall of the main frame at the compartment containing the speed change gearing has an opening through which access is had to the gearing'and this opening is sealed by a closure plate or cover 4. This cover plate provides a support for carrying a controlling lever for the speed change gearing. The front Wall of the main frame atthe gear compartment is recessed as at 5, providing a compartment for housing additional lever mechanism or devices for controlling the speed change gearing and this compartment is also sealed by a closure cap or cover 6 providing a removable support for carryin the lever mechanism cooperating with tlle controlling rods of the speed change gearing.

This localizes the various controlling levers for convenience and accessibility to the operator which is further enlarged upon by extending all of the hand levers in a in the rear side wall of the casing, reference being particularly had to Fig. 6. The pulley is connected to a shaft 11 by a friction clutch ring 12, keyed upon the shaft 11. The clutch may be of any type of construction, a split ring type being disclosed,

which is controlled by lever arm 13 actuated by a cone collar 14, fixed to the end of a rod.

The cone collar 14 is splined to the shaft 11 and is fastened to one end of slide. rod 16, which extends slidably through acentral bore of the shaft 11 to the opposite end thereof, projects therebeyond, and has r1gidly attached thereto a cone brake member 18, the cone member belng splined to the shaft 11 as at 19. When the cone collar 1s shifted to the right of its position shown in Fig. 6, the cone brake member 18 engages the walls of the conical opening 20 of the frame to prevent further rotation of the shaft 11. The one brake member 18 is provided with a grooved hub, the groove of which is engageable by the ends of a forked arm 21 attached and oscillatable with a shaft 22, said shaft being suitably mounted in the casing cover and having a handle extending upwardly and forwardly along the side of the machine in a direction corresponding to certain .gear shifting levers or handles, hereinafter described. The shaft 22 may be referred to as a hand lever having a shank portion journaled within the casing cover 4 and an extended reach. handle portion at an angle to the shank portion, projecting from the rear end of the machine toward the front end so as to be accessible to the operator while he is stationed aside the work table.

Upon the shaft 11 are mounted two shiftable gear assemblies, each comprising two gears connected by a sleeve, which sleeve is splined to the shaft 11. One assembly comprises the gears 25, 26. and the other thegears- 27,28, the gears being of gradually decreased diameter. A groove is formed between each pair of gears, with which cooperate the shifter lever arms, respectively 30, 31, of the corresponding shifter rods 32, 33, mounted in parallel re lation with one another and in the same vertical plane. The shifter rods are suitably slidably mounted in the opposite walls of the casing and project through and beyond the front wall thereof. The cover 6 is attached to the casing over the pocket 5, surof gears upon the shaft 11, said gears respectively designated 51, 52, 53 and 54.

A third or counter shaft is mounted two sets of gears corresponding to the sets parallel with the first-mentioned shafts and on the outside of the partition 2, said shaft being mounted in suitable bearings at the end of the frame. The outer end of the shaft 60 is journaled in a flanged bushing 70, suitable fastening devices being passed through the flange and engaged with the frame to hold the bushing The bushing is provided with an internal circumferential oil chamber 71 into which projects a cylindrical extension of the gear 61, the extension being provided with peripheral grooves lying within the chamber71. The outer end of the shaft 60 is provi' with a screw threaded stud 60" about w 'ich is disposed a washer 60 resting within a groove of the bushin 70 and against the vertical face thereo a pin being provided for fastening the washer to the shaft 60. A nut engaged with the stud forces the washer against the face of the circular depression of the bush ing. The shaft 60 is provided with a central bearing 60 having a chamber therein ex tending around the shaft, the shaft opposite the chamber being grooved, and an opening being provided laterally of said chamber in communication with the interior of the gear box. The opposite end bearing 60 of the shaft 60 is similarly provided with an oil space about the shaft and means is provided for the splash lubrication of the bearing.

A pinion 61 is keyed to the shaft 60, which pinion is in constant mesh with the bull gear 62. A pair of shiftable gears are splined to the shaft intermediate of its length, the gears being keyed-together, and respectively designated 63, 64. A groove 65 is provided in the gear 64, engageable by the arm 66 of the shifting rod 67 which is mounted parallel with the first-mentioned shifter rods and projects beyond the frame in like manner. Locking means 68, for each of the rods 32, 33 and 67, is provided, which means is mounted in the wall of the cover 6 and each comprises a spring-pressed ball engageable with suitable notches in the rods. When the rod 67 is shifted to bring its notch 69 in engagement with the locking means 68, the gear 63 is disconnected from the gear 54 and the gear 64 is engaged with the gear 6 integral with the shaft 50 to increase t1? speed of the intermediate shaft 50, higl and low speeds being thus provided for. Located beneath the V-notch 69 of the rod 67 is a rectangular notch 72 neutral position.

w licil engaged lay time arm lllattached to the vertical shank portion 74 of the shifting handle 75, which handle extends forwardly of the machine. The vertical portion 74 is suitably journaled in the housing 6 and the arm 73 is adjustably clamped thereon. The rods 32, 33, are shiftable by a single arm 80 attached to the vertical or shank portion 81 of the shifting handle 82. The shank portion 81 is journaled and slidably mounted in bearings of the housing 6, and the handle portion, of extended reach, represents an integral portion with the shank portion disposed at an angle thereto. The arm or handle 32 extends from the lower side of the cap or casing cover 6 and the handle from the upper side of said cover. The three handles 22, 7 5 and 82 extending in corresponding directions are of relative different lengths to bring the handles appropriately to, positions most accessible to the operator and without interference one with the other. A spring 83 stepped in a socket, normally holds the end of the arm in engagementwith a notch 84 at the end of the rod 32 and below the locking notches 32 therein. A correspond ing notch 84:is provided in the upper side of the shifter rod 33 and is designed to be engaged by the outer end of the arm 80 when the rods 32, 33, have their central looking notches engaged with the locking devices, that is, when the rods are in their neutral position The arm 80 has an extension 90, the outer end of which extends through the H slot 91 of a plate 92 attached to the housing 6. The middle vertical portion of the slot permits of the depression or raising of the outer end of the arm from one horizontal slot to the other to allow for the engagement of the outer end of the arm 80 with either rectangular notch 84 or 84 when the rods 32 and 33 are in neutral position. The end of the arm 80 may be dis engaged from the upper notch by the simple depression of the lever arm 82 to bring the said outer end into engagement with the notch 84, at which time the outer end of the arm 90 will be disposed for travel in either direction in the lower horizontal portion of the H slot.

By inspection of Figures 3 and 5, it will be evident that in order to bring the outer end of the arm 80 into engagement from one notch to another, the rods must be in their When the extension 90, of the arm 80, is engaged at an extremity of either the upper or lower horizontal portions of the H slot (see Fig.3), no raising or lowering of the arm 80 can be made.

Having described my invention, I claim:

1. In a machine tool of the character described, a hollow casing, said casing interiorly subdivided to provide a separate compartment, speed change gearing within frame, speed said-compartment, a closure cap for sealing an opening through a wall of the casing leading into said compartment, and a plurality of levers for controlling said gearing supported by said cap for localized control of said gearing, each lever integrally combining a shank portion journaled in said cap and an extended handle portion at an angle to the shank portion, the handle portions of said levers extending in a corresponding direction beyond the cap.

2. In a machine tool of the character described, a hollow casing, said casing interiorly subdivided to provide a separate oiltight compartment, speed change gearing 80 within said compartment, a closure cap for sealing an opening through a wall of the casing leading into said compartment, and a plurality of hand levers supported by said cap for controlling said gearing, each lever integrally combining a shank portion 'jour-' naled in said cap and an extended handle portion at an angle to the shank portion, said levers all extending in a corresponding directionfor localizing the gear control and ,from relative opposite ends of the cap to space said handle portion thereof.

3. In a machine tool of the character described, a hollow casing, said casing interiorly subdivided to provide a separate compartment, speed change gearing within said compartment, rods respectively slidably supported within said casing for shifting certain of said gears for speed change transmission control, said casing having a recess in one side thereof into which one end of said rods extend, aclosure cap for said recess, and levers for respectively actuating said rod, each having a shank portion journaled in said cap'and extended handle portion integral with the shank portion, and at an angle thereto, the handle portions of the levers extending in a corresponding direction for localizing the control.

4. In a machine of the character de- 110 scribed, a casing, a-closure'member for sealing an opening through a wall of the casing, a plurality of parallel shafts journaled in said casing, slidable gears respectively carried by each of said shafts, a shifting rod for each sliding gear, said rods arranged adjacent to one another and parallel, each havmg an end leading to said closure member, and a hand lever respectively for each rod mounted upon said closure member, for localizing the control of said hand lever extending in a corresponding direction 5. In a machine tool of the character disclosed, a hollow frame, a work table supported upon the forward end wall of said caange gearing comprising a plurality of sh fts journaled in the opposite side walls at the rear end of said frame, gears on said shafts, rods extending parallel with said shafts for sliding certainof said gears for effecting a speed change, a casing member. secured upon said frame adjacentthe end of said rods, hand levers mounted upon said member for actuating said rods,.said levers having handle ends extending in a corresponding direction from and toward said work table.

In witness whereof, I hereunto subscribe my name, as attested by the two subscribing witnesses.

ROBERT T HAZELTON.

Witnesses: v

GORDON C. Anny, R. KIs'rN R. 

